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Related Experiment Video

Updated: Jan 11, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

All-plasmonic sub-terahertz wireless communication link.

Tobias Blatter¹, Stefan M Koepfli², Amane Zuerrer³

¹ETH Zurich, Institute of Electromagnetic Fields (IEF), Zurich, Switzerland. tobias.blatter@ief.ee.ethz.ch.

Nature Communications

|November 13, 2025

Summary

This summary is machine-generated.

Researchers developed an all-plasmonic sub-Terahertz wireless link. This technology enables high-speed data transmission, potentially revolutionizing future 5G and 6G networks.

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Last Updated: Jan 11, 2026

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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

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Published on: August 30, 2012

Area of Science:

Physics
Electrical Engineering
Materials Science

Background:

Transitioning to sub-Terahertz (sub-THz) frequencies (0.1-0.3 THz) is crucial for increasing wireless capacity.
Plasmonics offers a novel solution for high-speed components, complementing traditional III-V semiconductor technologies.
Existing solutions face limitations in integration, scalability, and cost-effectiveness for future wireless demands.

Purpose of the Study:

To introduce and demonstrate an all-plasmonic sub-THz wireless link.
To showcase the potential of plasmonic components for high-speed wireless communications.
To validate the feasibility of plasmonics for future 5G, 6G, and beyond networks.

Main Methods:

Development of compact plasmonic components (<50 µm²) with a flat frequency response up to 300 GHz.
Establishment of an all-plasmonic wireless link for sub-THz communication.
Laboratory experiment transmitting 120 Gbit/s data over a 5 m free-space link at a 285 GHz carrier frequency.

Main Results:

Demonstrated a flat frequency response up to 300 GHz with plasmonic components.
Successfully transmitted 120 Gbit/s data over a 5 m link at 285 GHz.
Validated linear performance and a large power dynamic range of the plasmonic system.

Conclusions:

Plasmonic technology provides unprecedented integration potential and scalable, cost-effective fabrication for sub-THz components.
The all-plasmonic sub-THz wireless link addresses the wireless-optical data-rate bottleneck.
This technology paves the way for high-speed, cost-effective, and scalable sub-THz communications essential for future wireless networks.